diff options
Diffstat (limited to 'code/tools/lcc/cpp/unix.c')
-rw-r--r-- | code/tools/lcc/cpp/unix.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/code/tools/lcc/cpp/unix.c b/code/tools/lcc/cpp/unix.c new file mode 100644 index 0000000..a845a60 --- /dev/null +++ b/code/tools/lcc/cpp/unix.c @@ -0,0 +1,116 @@ +#include <stdio.h> +#include <stddef.h> +#include <stdlib.h> +#include <string.h> +#include "cpp.h" + +extern int getopt(int, char *const *, const char *); +extern char *optarg, rcsid[]; +extern int optind; +int verbose; +int Mflag; /* only print active include files */ +char *objname; /* "src.$O: " */ +int Cplusplus = 1; + +void +setup(int argc, char **argv) +{ + int c, fd, i; + char *fp, *dp; + Tokenrow tr; + extern void setup_kwtab(void); + + setup_kwtab(); + while ((c = getopt(argc, argv, "MNOVv+I:D:U:F:lg")) != -1) + switch (c) { + case 'N': + for (i=0; i<NINCLUDE; i++) + if (includelist[i].always==1) + includelist[i].deleted = 1; + break; + case 'I': + for (i=NINCLUDE-2; i>=0; i--) { + if (includelist[i].file==NULL) { + includelist[i].always = 1; + includelist[i].file = optarg; + break; + } + } + if (i<0) + error(FATAL, "Too many -I directives"); + break; + case 'D': + case 'U': + setsource("<cmdarg>", -1, optarg); + maketokenrow(3, &tr); + gettokens(&tr, 1); + doadefine(&tr, c); + unsetsource(); + break; + case 'M': + Mflag++; + break; + case 'v': + fprintf(stderr, "%s %s\n", argv[0], rcsid); + break; + case 'V': + verbose++; + break; + case '+': + Cplusplus++; + break; + default: + break; + } + dp = "."; + fp = "<stdin>"; + fd = 0; + if (optind<argc) { + if ((fp = strrchr(argv[optind], '/')) != NULL) { + int len = fp - argv[optind]; + dp = (char*)newstring((uchar*)argv[optind], len+1, 0); + dp[len] = '\0'; + } + fp = (char*)newstring((uchar*)argv[optind], strlen(argv[optind]), 0); + if ((fd = open(fp, 0)) <= 0) + error(FATAL, "Can't open input file %s", fp); + } + if (optind+1<argc) { + int fdo = creat(argv[optind+1], 0666); + if (fdo<0) + error(FATAL, "Can't open output file %s", argv[optind+1]); + dup2(fdo, 1); + } + if(Mflag) + setobjname(fp); + includelist[NINCLUDE-1].always = 0; + includelist[NINCLUDE-1].file = dp; + setsource(fp, fd, NULL); +} + + + +/* memmove is defined here because some vendors don't provide it at + all and others do a terrible job (like calling malloc) */ +void * +memmove(void *dp, const void *sp, size_t n) +{ + unsigned char *cdp, *csp; + + if (n<=0) + return 0; + cdp = dp; + csp = (unsigned char *)sp; + if (cdp < csp) { + do { + *cdp++ = *csp++; + } while (--n); + } else { + cdp += n; + csp += n; + do { + *--cdp = *--csp; + } while (--n); + } + return 0; +} |